Use the steps below to troubleshoot installation issues for Blizzard games.
What to do if you are unable to install or patch Diablo III
Information on what to do when a game update is stuck at 0 B/Ss
Installation or patch seems to be stuck at Fetching Encoding Table
Out-of-date drivers and operating systems can cause a variety of issues, and are one of the first things to check when a game is having problems.
Troubleshooting your security programs can resolve issues preventing you from installing or using Blizzard software.
Troubleshooting steps for performance-related problems.
Problems with patching may be resolved by disabling the read-only setting on system folders.
Troubleshooting for installation-related problems on Mac.
Battle.net is unable to find your game installation in the directory selected.